High Quality 2PK Humidifier Filter Water Panel Pad Designed To Fit Aprilaire Humidifier Models 560, 560A, 568, 600, 600A, 600M, 700, 700A, 700M, 760, 760A, 768, Fits Lennox WB2-17/WP2-18, Compare To Aprilaire 35 Water Panel Part # 35, Designed & Engineered by Crucial Air 2 High Quality Water Filter Panel Pads Designed To Fit 560, 560A, 568, 600, 600A, 600M, 700, 700A, 700M, 760, 760A, 768 Compare To Aprilaire 35 Water Panel